MQTT Jobs

I need to setup a VPS ready and Home Assistant. My next step is to add a rock-solid MQTT layer so I can trigger relay modules through voice commands issued from Amazon Alexa, Google Assistant, and Apple Siri. The relays must respond to simple ON/OFF requests and support dimming where hardware allows. Here’s what I need you to handle: • Recommend and install a production-grade MQTT broker on the VPS, configure secure remote access (SSL/TLS and user auth) and verify message flow with Home Assistant. • Create the necessary automations/intents inside Home Assistant so each of the three assistants recognises the devices and exposes the ON/OFF plus dimming capabilities. • Supply clean, well-commented Arduino (ESP32) code that subscribes to the chosen topics and drives ...

I’m putting together a Wi-Fi light switch around the ESP32 and I need complete firmware plus a small, self-hosted web interface so the unit can sit on my network and drive a dimmable light circuit. From the browser I should be able to turn the light on/off, set brightness, schedule automatic events, and reach the page securely while away from home. Key functions • Web interface (no mobile app requirement) served directly from the ESP32 • Features enabled: Scheduling, Dimming control, Remote access over the internet/LAN • Clean, responsive HTML + CSS + JavaScript (vanilla or lightweight framework) • MQTT support or lightweight REST endpoints are welcome if it simplifies remote control, but not mandatory Deliverables 1. Well-commented ESP32 source code r...

I’m putting together a new product prototype that pairs a PAA5100JE optical-flow breakout board with an ESP32. The goal is to have the ESP32 handle Wi-Fi connectivity, pull motion data from the PAA5100JE, and give me software control of several GPIOs so I can drive LEDs and switch power to an additional sensor on command. Here’s what I need from you: • An advised pin map and any level-shifting guidance for a clean, noise-free hardware hookup. • Well-structured firmware (PlatformIO or Arduino-IDE friendly) that: – Initializes the PAA5100JE and streams its measurements at a steady rate. – Publishes those readings over Wi-Fi—MQTT, HTTP, or WebSocket is fine, as long as it’s fast to implement and stable. – Exposes simple comman...

Develop Solar SCADA / IoT Telemetry Data Ingestion Backend Project Description We are developing TwinPro, a digital twin and monitoring platform for solar power plants. We require an IoT/backend developer to create a telemetry ingestion service capable of receiving operational data from solar inverters, weather stations, meters, SCBs, transformers and other plant equipment. Initially, the system will operate using a simulated solar SCADA data generator. It will later be connected to actual solar plants. Typical Data Points Inverters AC power DC power Daily energy Cumulative energy DC voltage AC voltage Current Frequency Efficiency Temperature Operating status Weather Station GHI POA irradiance Ambient temperature Module temperature Wind speed Relative humidity Energy Meter Activ...

IoT Cloud Solution Requirement We have developed a custom PCB-based IoT device consisting of an ESP32 microcontroller, an EC200 GSM (4G) module, an SCD30 sensor for measuring CO₂, temperature, and humidity, and a 5-inch display that shows these sensor readings in real time. We require a complete cloud-based IoT solution for approximately 100 deployed devices. Each device should securely transmit its sensor data to the cloud over the GSM network. The cloud platform should store the data, provide APIs for a mobile application, and support a Grafana dashboard for real-time monitoring and historical analysis. The solution should include secure device communication (MQTT or HTTPS), cloud data storage, user authentication, device management, real-time dashboards, historical reports, alert not...